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प्रश्न
A change in which matter undergoes a change but the total mass of the substance is unaltered is a ______ change.
पर्याय
physical
chemical
उत्तर
A change in which matter undergoes a change but the total mass of the substance is unaltered is a chemical change.
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संबंधित प्रश्न
Which of the following are chemical changes?
- Growth of a plant
- Rusting of iron
- Mixing of iron fillings and sand
- Cooking of food
- Digestion of food
- Freezing of water
- Burning of candle
Photosynthesis cannot take place at night.
State the Differences Between a Physical Change and a Chemical Change.
Separate the following into physical and chemical changes :
Sublimation of a solid, Decomposition of water into hydrogen and oxygen by passing electric current, Formation of clouds, Making a fruit salad from raw fruits, Dissolving carbon dioxide in water
What will you take into account while identifying the following?
A chemical change in a substance.
State what is meant by the term – interconversion of matter. Is interconversion of matter a physical change or a chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation involves a __________ change.
Name the following:
The final product of the physical change involved during the ‘melting of a piece of wax’.
Select the chemical changes from the following list of changes
Glowing of an electric bulb.
______ is the Universal Solvent.
